James b



(No Model.)' I

J. B. CHRISTOPHER.

JOURNAL BEARING. No. 693,082.- Patented Nov. 2,1897.

III/I ,5 W I? 12 11 w mdifly UNITED STATES PATENT Orrrcn JAMES B. CHRISTOPHER, OF PERU, ILLINOIS, ASSIGNOR OF ONE-HALF TO HARRY EIOKI-IOFF, OF SAME PLACE.

JOURNAL-BEARlNG.

SPECIFICATION forming part of Letters Patent No. 593,082, dated November 2, 1897.

Application filed August 26,1897. Sena-1N0. 649,595. (No model.)

To all whom it may concern: Disposed in the grooves 8 and 10 are a plu- Be it known thatI, JAMES B. CHRISTOPHER, rality of double balls 11, formed integrally, acitizen of theUnitedStates,residing atPeru, the adjacent faces of each pair of balls abutin the county of La Salle and State of Illinois, ting one against the other, and each ball of 5 5 have invented new and useful Improvements every pair being provided on its outer face in J ournal-Bearin gs, of which the following is with an axial cylindrical extension 12, forma specification. ing a roller. The rollers 12 project centrally This invention relates to journal-bearings,- from the balls 11 in opposite directions and and has for its object to provide an improved have a rolling bearing on the axle and the in- 60 IO roller bearing more especially designed for terior of the journal-box. The distance berailway-car axles wherein the antifrictiontween the bottoms or opposite faces of the rollers are maintained out of contact with grooves S and is slightly greater than the each other at fixed and uniform distances diametersof theballs 11, wherebythe balls do apart and end thrust of the rollers prevented. not normally contact with the axle or the 65 I 5 The present invention is in the nature of journal-box, but each pair of double balls is an improvement on the roller-bearing shown in contact with the adjacent double balls on and described in Letters Patent granted to each side, whereby the rollers 12 are mainme on the 16th day of March, 1897, and nurntained out of contact with each other and at bered 5'79,0 l1; and it consists in the improved uniform distances apart. 7c 20 construction, arrangement, and combination By forming the balls 11 double or in pairs of parts hereinafter described, and particu instead of singly, as shown and described in larly pointed out in the claims following the my said former patent, the rollers 12 are held description, reference being had to the accomin absolute parallelism, for the double balls panying drawings,formingapartof this specipresent two points of bearing which will re- 7 5 2 5 fica-tion, wherein sist any tendency of one end of the roller to Figure 1 is a perspective view of acar-axle run in advance of or lag behind the other end, box embodying my invention. Fig. 2 is a thus preventing the rollers from binding or longitudinal central section of the same, and wedging between the axle and journal-box. Fig. 3 is a transverse section on the line 3 3 I have also found in practice that the double 8o 0 of Fig. 2. balls work better than the single balls under .Referring to the drawings, the numerals 1 a heavy load, that they last longer, as there and 2 respectivelyindicate the corresponding is not so much wear as there is on the single halves of a car-axle box provided at their balls, while at the same time there is no apsides with registering lugs 3, through which preciable increase in friction. 85 3 5 are passed bolts 4:, that secure the two halves By the arrangement described the rollers of the box rigidly together. The outer end are free to roll around between the axle and of the box is closed by a lid 5, hinged to the box without having any grinding or rubbing upper section of the box and normally held act-ion one upon the other. It will be noted closed by a spring 6 and fastened in its closed that the rollers do not extend entirely to the 0 40 position by a spring-catch 7, attached to the ends of the box and are prevented from comunder side of the lower section of the box ing in contact with either end thereof by the and engaging the edge of the lid. balls 11, which, being seated in the grooves 8 The interior of the box is constructed to and 10, resist any endwise movement of the form a cylindrical chamber, in which are disrollers and receive any'end thrust that may 5 5 posed the axle and rollers, and midway bebe imparted to the latter, and as the weight tween its ends is provided with an annular supported by the axle is sustainedentirely groove 8, which is approximately U-shaped by the rollers and asthe balls and grooves in cross-section. The axle 9 is formed on its present no sharp or abrupt edges or angles periphery with a corresponding groove 10, such endthru'st will cause but little friction. roe which, when the parts are in position, lies By providing the double balls, as described, opposite to and registers with the groove 8. the increase in cost over the arrangement shown in my said former patent is merely nominal, while at the same time the efficiency of the bearing is promoted in the manner described.

The use of lubricant in the device is unnecessary.

in the journal-box, and a plurality of inte-' gral double balls disposed in said grooves, eachpair of balls being in contact with the adjacent balls on each side but normally out of contact with the journal andjournal-box and each ball of every pair provided with an axially-projecting roller disposed between the journal and the journal-box, the rollers of each set of balls being unconnected with the rollers of the other balls, substantially as described.

2. In a journal-bearing, the combination with a journal-box having a single annular groove substantially U-shaped in cross-section formed on its interior, of a journal arranged in the box and having a single circu mferential groove intermediate its ends corresponding to and registering with the groove in the journal-box, and a plurality of integral double balls disposed in said grooves, each pair of balls being in contact with the adjacent balls on each side, and each ball of every pair being provided with an axiallyprojecting roller; said rollersprojecting in opposite directions between the journal and journal-box and the rollers of each pair of balls being unconnected with the rollers of the other balls, the diameters of the balls being slightly less than. the distance between the bottoms or opposite faces of the said grooves whereby the balls are normally out of contact with the journal and journal-box, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JAMES B. CHRISTOPHER.

Witnesses:

J. R. YOUNG, WILLIAM J. SIEGLER. 

